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Scope recomendations in $15-20K range?

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2N3055:

--- Quote from: nctnico on February 29, 2024, 11:38:11 pm ---
--- Quote from: pdenisowski on February 29, 2024, 02:41:02 pm ---
--- Quote from: 2N3055 on February 29, 2024, 07:11:59 am ---RF is done best with RF tools like SA.

--- End quote ---

True, but if you don't have the budget for both a scope and a spec an, then choosing a scope with a really good FFT implementation (like the MXO4) becomes important.

In addition, the ability to look at a signal in both the time and frequency domains is extremely helpful in many different applications: especially if you can set the spectrum parameters (center, span, etc.) independent of the time-domain settings.

--- End quote ---
Indeed. If you have a PSU for example, you can analyse a waveform piece-by-piece using FFT and find out which part of the waveform is causing excessive emissions. You can't find this using a spectrum analyser.

--- End quote ---

But scope I mentioned, for instance, can do that..
I didn't say don't do this with a scope. I said, you can have a scope with good FFT AND a SA for that money and have both...

pdenisowski:

--- Quote from: alm on February 29, 2024, 09:28:31 pm ---I absolutely agree with this. For this kind of price, don't just order online, but ask for a loaner you can keep for some days and test with your own signals.

--- End quote ---

Agree - I've done literally hundreds of in-person visits and demonstrations for single-instrument sales opportunities (for two of the biggest T&M companies). 


--- Quote from: alm on February 29, 2024, 09:28:31 pm ---I would also consider that the fancy probes like active probes, differential probes, current probes, power rail probes, isolated probes etc are often not interchangeable between brands. So if you are interested in some of the more exotic probes, take that into account. I would say that for 1 GHz bandwidth you should definitely look at active probes or lo-Z resistive divider passive probes

--- End quote ---

In my experience, most differential and current probes can be used with any scope (although they would have to be powered in a non-proprietary way).  Single-ended active (FET) probes are usually best bought from the same manufacturer as the scope.

That said, you usually get what you pay for with probes, so unless you have very modest requirements, you're not really saving money buying "budget" probes to go with a "nice" scope.

nctnico:

--- Quote from: jayk on February 29, 2024, 06:45:41 am ---I haven't used the Tek or Lecroy yet, but I'm seeing if there's a way to get one as a demo.

--- End quote ---
In this price range, you really need to get some hands-on experience with a selection of devices. Make sure to get a demo unit for at least a week (not just a visit from a salesperson); this shouldn't be a problem generally speaking. If it is, then just skip. But before doing that, make sure to create a test plan so you can determine piece of equipment truly caters to your needs. Making this testplan will take time & reading datasheets and manuals for the various pieces of equipment but it will be worth the effort as you'll also learn about the differences between the various pieces of equipment. Each manufacturer has their own approach to making oscilloscopes making it a wildly varying landscape.

tv84:
I think the best comparison reference should be indeed the LeCroy Wavesurfer 4104HD.  You should/must drive test this one and compare all others to this experience.

That would still leave space for some probes and MAUI software is... MAUI software.

R&S MXO seem above the $$ range. Tek and KS are no go.

Siglent 6000A is below what a 15-20k$ user desires. Siglent 7000A is above just because of BW.

pdenisowski:

--- Quote from: tv84 on March 01, 2024, 11:26:02 pm ---R&S MXO seem above the $$ range.

--- End quote ---

There's an MXO4 bundle promotion going on right now (MXO4-BNDL) that's 20,665 USD (either through us or through a distributor).  That's about 1/3 off of list price.

Package MXO 4 series digital oscilloscope 4 channels, Contains serialized product + options: R&S®MXO44 digital oscilloscope 1335.5050K04 consisting of: - R&S®MXO44 digital oscilloscope, 4 channel, 200MHz - R&S®MXO4-B2415 1.5GHz Bandwidth upgrade - R&S®MXO4-PK1 Application bundle consisting of -Arbitrary Waveform Generator MXO4-B6 - Power Analysis MXO4-K31 -Frequency&Impedance analysis MXO4-K36 Triggering and decoding for (I2C,SPI,UART/RS-232/-422/-48)MXO4-K510 (CAN,CAN-FD,CAN-XL,LIN) MXO4-K520

https://www.rohde-schwarz.com/us/products/test-and-measurement/oscilloscopes/rs-mxo-4-oscilloscope_63493-1164992.html (hit: "Configure and Quote")
https://www.newark.com/rohde-schwarz/mxo4-bndl/oscilloscope-1-5ghz-5gsps/dp/70AK5603
https://www.testequity.com/product/20000019-MXO4-BNDL


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